Leslie a



(No Model.)

L. AQGOOPBR.

REGENERATIVE GAS LAMP.

Patented Dec. 16, 1890l Tijl- 2 Tn: cams paens co, Pauw-umm, msnmmon, D, c.

UNITED STATES PATENT OEEICE.

LESLIE A. COOPER, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO FISKE, COLEMAN tb CO., OF SAME PLACE.

REG EN ERATIVE GAS-LAM P.

SEECIFICATION forming part of Letters Patent No. 442,613, dated December 16, 1890.

Application filed September 1, 1890. Serial No. 363,698. (No model.)

To cLZZ whom it may concern:

Be it known that I, LESLIE A. COOPER, of Boston, in the county of Suffolk and State of Massachusetts, have invented new and useful Improvements in Regenerative Gas-Lamps, of which the following is a specitication.

This invention relates to regenerative gaslalnps, such as are used principally for street and other outside lighting and for lighting large interior spaces; and the improvements relate particularly to those portions which forni what is technicallytermed the fixture.

In the accompanying drawings, in which similarletters of reference indicate like parts, Figure l is an elevation of a lamp and fixture embodying my invention, the lantern, not new in this invention, being shown in section. Fig. 2 is au enlarged central vertical section ot a portion of the same, a part of one of the rods being shown in elevation. Fig. is a horizontal section on line oc, Fig. l.

a represents the lamp; b, the burner, (1)' being the lip;) c, the globe, and CZ the chimney.

e is the lantern, the novel parts in the construction of which are made the subject of an application for Letters Patent of even date herewith.

A represents the top of the supportingpost, and B is a ring secured thereto and provided with Win gs B', perforated to receive two vertical supporting or steadying rods C C', which are adjustably supported therein by means of nuts C.

D is the service-pipe. The parts by means suitable joints to the pipe F', and thence to the burner b. The upper ends of the rods C C' are held, respectively, in the joints q r.

A portion ot' the gas from the service-pipe D passes into the pipe H, the amount thus passing being iixed by the regulator I, and thence through the T-joint o, through the pipe J, union J', pipe K, T-joint K', (the whole forming what is termed a by-pass,) and pipe L, and suitable joints L', to the pipe N, and thenceintoaT-jointP,just outside the chimney of the lamp. (See Fig. 3.) Thence the gas enters a small pipe R, which curves horizontally partly around the chimney and then bends sharply and extends through to the inside, so that its -end or ltip is Within the chimney above the burner. This tip is kept constantly lighted, and being within the chimney is unaffected by the wind and may be very small. By means of the by-pass above mentioned it also entirely avoids the governor.

By turning the cock g the burner is supplied With gas in the ordinary manner, which is ignited by thepilot-light R.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

In a regenerative gas-lamp, the adjustable support comprisingthe ring B, provided with the perforated wings B', and the adjustable posts or rods C C', arranged substantially as set forth,

LESLIE A. COOPER. -lVitnesses:

HENRY IV. WILLIAMS, J. M. I-IARTNETT. 

